The product was originally developed by Dr. William Fairman and released as the 'c-tree File Handler' in 1984. The name originated from the fact that c-tree was an implementation of a B+ tree written in the C programming language.
The original name of the system was c-treeACE. It was renamed to FairCom DB in 2020
https://www.faircom.com/products/faircom-db
https://learn.faircomcorp.com/developers/documentation_directory
FairCom Corporation
1984
c-treeAce, c-tree File Handler, c-tree Plus
HP-UX, Linux, VxWorks, Windows